Working on my vintage Volvo gave me the opportunity to put into practice many of the work skills I have learned throughout my career. I am planning to upgrade my Bosch D-Jet fuel injection computer from 1971 to a modern build-your-own MegaSquirt. This required me to use the original raster image wiring diagram and overlay CAD data along with creating a new harness diagram.
This diagram is to be the final configuration including remote door locks and alarm system.
This diagram is the first stage in upgrading my vehicles electrical system.
Since I need to create a new fuel injection harness, I documented the orginal one and shared it with the volvo community.
These files comprise a set of drawings for a frequency generator I constructed, all on ANSI Y14.1 formats. This generator uses discreet logic to produce a square wave with a 50% duty cycle that is variable from approximately 100 Hz to 1 kHz. The prototype was built using the wire wrap technique. The set includes:
A physical arrangement dropped into AutoCAD 2011 from Inventor 2011
A functional diagram (with an additional diagram color coded by function), originally created
in MultiSim and dropped into AutoCAD
Miscellaneous data and test information
An interactive 3D pdf model originally created in Inventor 2011
An animation of the generator’s assembly
Rendered images
Final product images
A pdf Portfolio with all the documentation
I am in the process of recreating this project in EagleCAD to produce a double-sided through-hole printed circuit board, along with a custom enclosure modeled in Sketchup and produced with CAM.
This CD case assembly was one of the first models I created in Inventor 8, and the first 3D pdf I created. This was also the first animation I produced.
This is a render of the school lab project station I used for my logic class. I was having difficulty assembling and troubleshooting my circuits within the allotted lab time so I took a picture of the work station and modeled full scale what I would be doing for the week. This allowed me additional time to fully build and test my circuits before I had to disassemble them at the end of lab.
When I first interned at the Newport News Shipyard, I was surprised to find that legacy hand created drawings were still being revised by hand. In an effort to reduce the time spent and improve the quality of these drawings, I investigated the alternatives. What resulted was a methodology to electronically revise these drawings using the functionality of AutoCAD’s Raster Design package.
This is a video of a project I did for my microcontroller class. The key features of this project demonstrate how to de-bounce an input, track interrupts, and matrix a keypad. The code for this project was created in assembly language for the PIC microcontroller.
This is a video presentation of my final project. I created a microcontroller based speedometer that sensed the passing of a magnet by a reed switch, de-bounced the input, performed speed, distance and acceleration calculations based upon the tire circumference, and then displayed the results on an LCD.